# On one page of a telephone directory, there are 200 phone number. The frequency distribution of their units digits is given below: One of the number is chosen at random from the page. What is the probability that the units digit of the chosen number is (i) 5? (8)?

Total number of Numbers on a page: 200

Number of telephone Numbers which have 5 in its units place: 24

Number of telephone Numbers which have 8 in its units place: 16

Probability P() = 1.Let P(5) be probability of telephone number having 5 in the units place

P (5) = P (5) = = 0.12

2.Let P(8) be probability of telephone number having 8 in units place P (8) = P (8) = = 0.08

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